Save for Web allows to find compromise between minimal file size
and acceptable quality of image quickly. While adjusting various
settings, you may explore how image quality and file size change.
Options to reduce file size of an image include setting compression
quality, number or colors, resizing, cropping, Exif information
removal, etc.
[ edited version of author's www site ]
This plugin losslessly decomposes a layer of an image into layers
of wavelet scales. This means that you can edit the image on different
detail scales (frequencies). The trivial recomposition of the image
can be done by GIMP's layer modes so you can see the results of
your modifications instantly. Among the applications are retouching,
noise reduction, and enhancing global contrast.
The plugin can be found under "Filters > Generic > Wavelet decompose"
The wavelet denoise plugin is a tool to reduce noise in each channel
of an image separately.
The default colour space to do denoising is YCbCr which has the
advantage that chroma noise can be reduced without affecting image
details. Denoising in CIELAB (L*a*b*) or RGB is available as an
option.
The user interface allows colour mode and preview channel selection.
The denoising threshold can be set for each colour channel
independently.
The plugin can be found under "Filters > Enhance > Wavelet denoise"
The wavelet decomposition of an image results in multiple images
with different frequency content. When amplifying the high frequency
parts the recomposed image appears to be sharper than the original
one. That way the frequency which should be amplified most can also
be selected and a given unsharpness in the original image can be
taken into account.
The wavelet sharpen plugin enhances apparent sharpness of an image
by increasing contrast in high frequency space. The amount of
unsharpness of the original image can be taken into account by
adjusting the sharpening radius. As an option you can choose to
sharpen the luminance (YCbCr) channel of the image only.
The plugin can be found under "Filters > Enhance > Wavelet sharpen"
A bundle over 100 handy scripts for The Gimp.
GLE is a graphics language that produces PostScript, EPS, PDF, PNG,
or JPG ouput from a simple script file.
GLE is a full featured scripting language that includes variables,
subroutines, logic control, looping, a graphing tool, and more
to produce high quality output. It has a full range of facilities
for producing publication-quality graphs, diagrams, posters and slides.
GLE provides LaTeX quality fonts together with a flexible graphics
module, which allows the user to specify any feature of a graph
(down to the line width of the subticks, for example).
Glitz is an OpenGL image compositing library. Glitz provides
Porter/Duff compositing of images and implicit mask generation for
geometric primitives including trapezoids, triangles, and rectangles.
An Image viewer that uses Gdk-Pixbuf to load images, and OpenGL to render them.
SlideShow Viewer
LICENSE: GPL2 or later